The challenges section was critically famed for the only popular thread to ever exist in it, 'The Kudos Thread', made by Mewthree. Sadly, it got locked for being pointless (which it was, to be honest).

Back in it's day it was used as a hub for Mario Kart Wii races and the like, but has since been disused for many months.

There was an attempted revival of the section by the member 142520452213 (Numberish Fellow), this was popular for a month but then failed due to lack of people doing the challenges.